Rockwell-automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Commun Manual de usuario descargar pdf (Pagina 108)

108 Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013

Chapter 6 Using Explicit Messaging

ControlLogix Controller

Examples

For supported classes, instances, and attributes, see Appendix C, EtherNet/IP

Objects.

Explicit Messaging Using RSLogix 5000 Software, Version 15.00

or Later

ControlLogix Controller Example Ladder Logic Program to Read a Single

Parameter

A Parameter Read message is used to read a single parameter. This read message

example reads the value of parameter 003 - [Output Current] in a PowerFlex 7-

Class drive.

Table 18 - Example Controller Tags to Read a Single Parameter

Figure 35 - Example Ladder Logic to Read a Single Parameter

TIP

To display the Message Configuration screen in RSLogix 5000 software, add

a message instruction (MSG), create a new tag for the message (Properties:

Base tag type, MESSAGE data type, controller scope), and click the

button in the message instruction.

Operand Controller Tags for Single Read Message Data Type

XIC Execute_Single_Read_Message BOOL

MSG Single_Read_Message MESSAGE

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 237 238

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Rockwell-automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Commun Manual de usuario Pagina 108